package com.bobo.mall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.bobo.common.constant.ProductConstant;
import com.bobo.mall.product.dao.AttrAttrgroupRelationDao;
import com.bobo.mall.product.dao.AttrGroupDao;
import com.bobo.mall.product.dao.CategoryDao;
import com.bobo.mall.product.entity.AttrAttrgroupRelationEntity;
import com.bobo.mall.product.entity.AttrGroupEntity;
import com.bobo.mall.product.entity.CategoryEntity;
import com.bobo.mall.product.service.CategoryService;
import com.bobo.mall.product.vo.AttrGroupRelationVo;
import com.bobo.mall.product.vo.AttrRespVo;
import com.bobo.mall.product.vo.AttrVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.bobo.common.utils.PageUtils;
import com.bobo.common.utils.Query;

import com.bobo.mall.product.dao.AttrDao;
import com.bobo.mall.product.entity.AttrEntity;
import com.bobo.mall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao relationDao;
    @Autowired
    AttrGroupDao attrGroupDao;
    @Autowired
    CategoryDao categoryDao;
    @Autowired
    CategoryService categoryService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        if (catelogId == 0){
            IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params),
                    new QueryWrapper<AttrEntity>());
            return new PageUtils(page);
        }
        else {
            String key = (String) params.get("key");
            QueryWrapper<AttrEntity> wrapper = new QueryWrapper<>();
            wrapper.eq("catelog_id",catelogId);
            if (!StringUtils.isEmpty(key)){
                wrapper.eq("attr_group_id",key).like("attr_group_name",key);
            }
            IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
            return new PageUtils(page);
        }
    }

    @Transactional
    @Override
    public void saveDetail(AttrVo attr) {

        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        System.out.println("------------------"+attrEntity.toString());
        // 1、保存基本数据
        this.save(attrEntity);
        // 2、保存关联关系
        if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId() != null){
            AttrAttrgroupRelationEntity entity = new AttrAttrgroupRelationEntity();
            entity.setAttrGroupId(attr.getAttrGroupId());
            entity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(entity);
        }
    }


    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId,String type) {
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
        if (catelogId != 0){
            wrapper.eq("catelog_id",catelogId);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params),
                wrapper);
        PageUtils pageUtils = new PageUtils(page);


        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVoList = records.stream().map((attrEntity -> {
            AttrRespVo respVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, respVo);
            // 设置分组和分类名称
            //通过前端传过来的attr_id查询关联表对象
            //1、设置分组名称
            if ("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attr_id = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attr_id != null&& attr_id.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attr_id.getAttrGroupId());
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
            // 2、设置分类名称
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                respVo.setCatelogName(categoryEntity.getName());
            }
            return respVo;
        })).collect(Collectors.toList());

        pageUtils.setList(respVoList);
        return pageUtils;

    }

    @Override
    public AttrRespVo getInfoById(Long attrId) {
        AttrEntity attrEntity = this.getById(attrId);
        AttrRespVo attrRespVo = new AttrRespVo();
        BeanUtils.copyProperties(attrEntity,attrRespVo);
        AttrAttrgroupRelationEntity relationEntity = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attrId));
        // 1、设置分组信息
        if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            if (relationEntity !=null){
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(relationEntity.getAttrGroupId());
                if (attrGroupEntity !=null){
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }
        //2、设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        attrRespVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            attrRespVo.setCatelogName(categoryEntity.getName());
        }
        return attrRespVo;
    }

    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            // 修改分组关联
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if (count > 0 ){
                relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else{
                relationDao.insert(relationEntity);
            }
        }
    }

    /**
     * '根据分组id。查找所有的关联基本属性
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<Long> attrIds = relationEntities.stream().map((entity) -> {
            return entity.getAttrId();
        }).collect(Collectors.toList());

        if (attrIds == null || attrIds.size() == 0){
            return null;
        }
        List<AttrEntity> entities = this.listByIds(attrIds);
        return entities;
    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
        List<AttrAttrgroupRelationEntity> entities = Arrays.stream(vos).map((item) -> {
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());
        relationDao.deleteBatchRelation(entities);
    }

    /**
     * 获取当前分组没有关联的所有属性
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        // 1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        // 2、当前分组只能关联别的分组没有关联的属性
        // 2.1、当前分类下的其他分组
        List<AttrGroupEntity> groupEntities = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = groupEntities.stream().map((item) -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());

        // 2.2、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> collect1 = relationEntities.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());
        // 2.3、从当前分组中的所有属性中移除这些属性
        //List<AttrEntity> entities = this.baseMapper.selectList(new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).notIn("attr_id", collect1));
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE);
        if (collect1 != null && collect1.size()>0){
            wrapper.notIn("attr_id", collect1);
        }
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and(w->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }

    /**
     * 在指定的所有属性集合里面，挑出检索属性
     * @param attrIds
     * @return
     */
    @Override
    public List<Long> selectSearchAttrIds(List<Long> attrIds) {
        return baseMapper.selectSearchAttrIds(attrIds);

    }

}